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Role of the medium on the C343 inter/intramolecular hydrogen bond interactions. An absorption, emission, and 1HNMR investigation of C343 in benzene/n-heptane mixtures
(American Chemical Society, 2010-07-21)
C343, a common molecular probe utilized in solvation dynamics experiments, was studied in homogeneous media. Absorption, emission, and 1HNMR spectroscopies were used to investigate the behavior of C343 in benzene and in ...
Crystal structure of (E)-2-(tert-butylamino)-4-(tertbutylimino)naphthalen-1(4H)-one
(2018)
The title compound, C18H24N2O, is the first example of a naphthoquinone imine derivative isolated in the 4-imine/2-amine tautomeric form having bulky alkyl substituents at the N atoms. The molecular conformation is stabilized ...
Crystal structure of (E)-2-(tert-butylamino)-4-(tertbutylimino)naphthalen-1(4H)-one
(2018)
The title compound, C18H24N2O, is the first example of a naphthoquinone imine derivative isolated in the 4-imine/2-amine tautomeric form having bulky alkyl substituents at the N atoms. The molecular conformation is stabilized ...
1hJFH coupling in 2-fluorophenol revisited: Is intramolecular hydrogen bond responsible for this long-range coupling?
(John Wiley & Sons Ltd, 2011-11)
The present study shows that a hydrogen bond between the OH group and the fluorine atom is not involved in the 1hJFH spin-spin coupling transmission either for 4-bromo-2-fluorophenol or 2-fluorophenol. In fact, according ...
Síntese de 3-organocalcogenil-2-organo-cromenonas via reações de ciclização intramolecular mediada por selectfluor®
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2021-09-30)
This paper reports the development of an effective synthetic protocol between 1,3-
organo-propynones 1 and different diorganoyl dicalcogenides 2 mediated by Selectfluor® and
employing acetonitrile as a solvent, at room ...
Phenylalanine and tyrosine methyl ester intramolecular interactions and conformational analysis by H-1 NMR and infrared spectroscopies and theoretical calculations
(Pergamon-elsevier Science LtdOxfordInglaterra, 2014)
On the effect of intramolecular H-bonding in the configurational assessment of polyhydroxylated compounds with computational methods. The hyacinthacines case
(Elsevier, 2019-02)
Hyacinthacines are important members of the pyrrolizidine family, with several compounds having ambiguous, revised or unverified structures. Herein we thoroughly explored the performance DP4 and DP4+ for the in silico ...
1hJFH coupling in 2-fluorophenol revisited: Is intramolecular hydrogen bond responsible for this long-range coupling?
(Wiley-blackwellHobokenEUA, 2011)